'Study Sapuri ENGLISH' Launches 'Interactive AI English Conversation' Feature Across All Major Courses

Recruit Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; President and Representative Director: Keiichi Ushida; hereafter Recruit), provider of the No.1 paid English learning app by user count*, 'Study Sapuri ENGLISH', has launched its 'Interactive AI English Conversation' feature, utilizing generative AI, in over 800 major courses starting from March 2026. The service evolves from the conventional 'speak a key phrase and self-grade' format to an 'English conversation experience where you can converse with AI in real-time'. Through more practical and individually optimized feedback, it enhances the quality and quantity of learners' output.

*1: Survey commissioned to: Macromill Inc. Respondents: 1,016 individuals who have used a paid English learning app within the past year | Survey period: August 19 - August 27, 2025. Survey method: Internet survey.

1. Features of the 'Interactive AI English Conversation' Function

① From Scripted to 'Conversational'. A Practical English Conversation Experience

The generative AI responds in real-time according to the user's speech, enabling a natural conversational exchange. Instead of reproducing set phrases, users can practice English conversation in a form closer to actual communication.

② Real-time × Individually Optimized Feedback

It provides improvement points for the spoken content on the spot. By offering feedback from multiple perspectives—such as the naturalness of expressions, appropriateness of vocabulary and grammar, and better alternative phrases—it enhances the quality of output.

③ Not Just 'English Conversation', but Comprehensive English Proficiency Improvement

This feature is not merely a conversation practice tool, but a core function that optimizes output within the overall English learning process. By integrating AI English conversation into the systematic lessons of over 800 courses provided by 'Study Sapuri ENGLISH', it comprehensively strengthens listening, vocabulary, grammar, and speaking skills. It achieves comprehensive English proficiency improvement through a learning design that integrates 'listening, understanding, and speaking' in a cycle of input and output.

2. Development Background: The 'I've learned it, but I can't speak it' Barrier

We often hear from English learners about challenges such as, 'I've memorized key phrases but can't use them in conversation,' 'I can't understand what the other person is saying,' and 'I can't speak up when it counts.' Behind these issues lies a structural problem where one-off conversation practice alone cannot sufficiently build the comprehensive communication skills necessary for conversation.

Therefore, 'Study Sapuri ENGLISH' has integrated AI English conversation into a learning design that allows users to acquire the 'comprehensive skills needed for speaking' in stages.

By circulating input and output, we aim to realize a learning experience that develops 'listening, understanding, and speaking' skills in an integrated manner.

3. Introduction Effects (Verification Results)

Prior to the launch of this service, a verification was conducted in the Business English course*.

The results showed a high satisfaction level, with 95% of users giving a 'Good' rating. Furthermore, compared to conventional output training, the use of AI English conversation increased by approximately 2.3 times, confirming a significant expansion in learners' output volume. No inappropriate responses were observed, and safety was also confirmed.

Based on these results, which confirmed both an increase in output volume and improved satisfaction, we proceeded with the launch of this service.

*2: Implementation period: November 18, 2025 - February 17, 2026, Number of sessions: 5,125, Number of users: 714

4. The World 'Study Sapuri ENGLISH' Aims to Create

At 'Study Sapuri ENGLISH', we are promoting initiatives that consistently support learners from 'learning' to 'measuring' and 'feeling the effects'. As part of this, starting from Monday, April 6, 2026, we have launched a service for members to take the 'TOEIC® L&R IP Test (Online)*'. By visualizing daily learning outcomes and providing an environment where the accumulation of effort can be felt as a concrete score, we aim to realize a learning experience where effects are more easily felt.

We believe that getting closer to a 'version of yourself who can speak' is not just about improving language skills, but also about expanding opportunities for challenges and increasing the number of people who take a new step forward.